Working on your vehicle engine head is rarely for fun, and nothing makes a stressful job worse than not having the correct tool for the job. With the ABN H-Type Engine Head Bolt Socket Metric Tool Set, you can easily maneuver through the access hole, under the camshaft, and past the rocker assembly to make an engine head project less of a headache. The slim 3in (7.8cm) chromium-molybdenum design of the sockets in this head bolt removal tool set gets you straight to the problem in no time. Including the metric sizes of 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 17mm, and 19mm conveniently etched into each socket for easy identification that won't wear off. Keep all of your 1/2in drive metric engine head bolt sockets organized in the included hard plastic molded snap case. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.